<div id="page-wrapper" style = 'min-height:412px'>
    <div class="container-fluid" id = 'container-fluid'>
        <div class="row">
            <div class="col-lg-12">
                <h1 class="page-header">众知欢迎您!</h1>
            </div>
        </div>
    </div>
</div>